Relation Between Body Surface Mapping and Endocardial Spread of Ventricular Activation in Postinfarction Heart

Body Surface Mapping and Endocardial Activation Patterns. Introduction: Body surface mapping (BSM) can be used to identify the site of earliest endocardial activation of ventricular tachycardias (VTs). The multielectrode QRS morphology during VT is determined by both the site of earliest activation and the subsequent spread of electrical activation through the ventricles. This study investigated the relationship between the site of earliest endocardial activation, endocardial spread of activation, and the morphology of the multielectrode surface map in patients with remote myocardial infarction.

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